[TRNSYS-users] Thermal lag in absorption chillers

[David Bradley]

Anand,
  Interesting problem. Type107 does not take any thermal lag into 
account; it is a quasi steady state model. The most correct solution to 
the problem would be to modify the Type107 code so that you can enter 
time constants and cause the machine capacity and power draw to change 
more slowly. As a quicker workaround, I suppose that you could use 
either Type93 (Utility: Input Value Recall) or Type661 (Controllers 
Library (TESS): Delayed Inputs) on the outlet side of your absorption 
chiller.
Best,
 David

>
> Hence my queries are as follows:
> 1. Does Type 107 in TRNSYS, take into consideration this thermal lag ? 
> I referred to the documentation but I am still confused.
> 2. Alternatively is there any other Type which models the thermal lag, 
> and which I should buy ?
> 3. Otherwise any suggestions on how I can model this thermal lag in 
> the chiller ?
>
> Hope some of you have already encountered this problem (and reached a 
> solution !!!).
> Looking forward for your help
> -
> Regards,
>
> Anand Upadhyay
> The Energy & Resources Institute (TERI), New Delhi
> ------------------------------------------------------------------------------------------------------------ 
> Disclaimer: 
> The information contained in this e-mail is intended for the person or entity
> to which it is addressed, and it may contain confidential and/or privileged
> material. Any review or other use of this mail or taking any action based on it
> by persons or entities other than the intended recipient is strictly prohibited.
> If you receive this e-mail by mistake, please contact the sender, and delete all
> copies of this mail.This e-mail has been scanned and verified by McAfee SaaS
> Email Security, formerly MX Logic.
> ------------------------------------------------------------------------
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>   

-- 
***********************************************************************
Thermal Energy System Specialists (TESS), LLC 
David BRADLEY                      22 N. Carroll Street - Suite 370 
Partner                            Madison, WI 53703 
                                   USA
P: +1.608.274.2577 
F: +1.608.278.1475
E-mail: bradley at tess-inc.com 
Web Pages:  http://www.tess-inc.com    and      http://www.trnsys.com

***********************************************************************